/*
 *  JMule - Java file sharing client
 *  Copyright (C) 2007-2008 JMule team ( jmule@jmule.org / http://jmule.org )
 *
 *  Any parts of this program derived from other projects, or contributed
 *  by third-party developers are copyrighted by their respective authors.
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 */
package com.kirk.cts.ui.utils;

import javax.swing.*;
import java.awt.*;

/**
 * @author javajox
 * @version $$Revision: 1.2 $$
 * Last changed by $$Author: javajox $$ on $$Date: 2008/10/16 17:35:11 $$
 */
public final class SwingUtils {

    /**
     * Centers a window on screen.
     * <p>
     *
     * @param w The window to center.
     */
    public static void centerOnScreen(Window w) {
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension splashSize = w.getPreferredSize();
        w.setLocation(screenSize.width / 2 - (splashSize.width / 2),
                screenSize.height / 2 - (splashSize.height / 2));
    }

    // Center Window on screen
    public static void centerAndSizeWindow(Window win, int fraction, int base) {
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        int width = screenSize.width * fraction / base;
        int height = screenSize.height * fraction / base;

        Rectangle rect = new Rectangle((screenSize.width - width) / 2,
                (screenSize.height - height) / 2, width, height);
        win.setBounds(rect);
    }

    /**
     * Maximizes a JFrame, just like the 'maximize window' button does.
     * <p>
     *
     * @param f The frame to maximize.
     */
    public static void maximizeJFrame(JFrame f) {

        f.setExtendedState(Frame.MAXIMIZED_BOTH);
    }

    public static void setWindowLocationRelativeTo(Window window, Window relativeWindow) {
        Rectangle windowBounds = window.getBounds();
        Dimension rwSize = relativeWindow.getSize();
        Point rwLoc = relativeWindow.getLocation();

        int dx = rwLoc.x + ((rwSize.width - windowBounds.width) >> 1);
        int dy = rwLoc.y + ((rwSize.height - windowBounds.height) >> 1);
        Dimension ss = window.getToolkit().getScreenSize();

        if (dy + windowBounds.height > ss.height) {
            dy = ss.height - windowBounds.height;
            dx = rwLoc.x < (ss.width >> 1) ? rwLoc.x + rwSize.width :
                    rwLoc.x - windowBounds.width;
        }
        if (dx + windowBounds.width > ss.width) {
            dx = ss.width - windowBounds.width;
        }
        if (dx < 0) {
            dx = 0;
        }
        if (dy < 0) {
            dy = 0;
        }
        window.setLocation(dx, dy);
    }

    /**
     * Creates a new <code>Color</code> that is a brighter version of this
     * <code>Color</code>. This method is the same implementation
     * java.awt.Color#brighter is usind except it has a configurable factor.
     * The java.awt.Color default facotr is 0.7
     *
     * @return a new <code>Color</code> object that is
     * a brighter version of this <code>Color</code>.
     * @see Color#darker
     */
    public static Color brighterColor(Color color, double factor) {
        int r = color.getRed();
        int g = color.getGreen();
        int b = color.getBlue();

        /* From 2D group:
         * 1. black.brighter() should return grey
         * 2. applying brighter to blue will always return blue, brighter
         * 3. non pure color (non zero rgb) will eventually return white
         */
        int i = (int) (1.0 / (1.0 - factor));
        if (r == 0 && g == 0 && b == 0) {
            return new Color(i, i, i);
        }
        if (r > 0 && r < i) r = i;
        if (g > 0 && g < i) g = i;
        if (b > 0 && b < i) b = i;

        return new Color(Math.min((int) (r / factor), 255),
                Math.min((int) (g / factor), 255),
                Math.min((int) (b / factor), 255));
    }

    /**
     * Creates a new <code>Color</code> that is a darker version of this
     * <code>Color</code>. This method is the same implementation
     * java.awt.Color#darker is usind except it has a configurable factor.
     * The java.awt.Color default facotr is 0.7
     *
     * @return a new <code>Color</code> object that is
     * a darker version of this <code>Color</code>.
     * @see Color#brighter
     */
    public static Color darkerColor(Color color, double factor) {
        return new Color(Math.max((int) (color.getRed() * factor), 0),
                Math.max((int) (color.getGreen() * factor), 0),
                Math.max((int) (color.getBlue() * factor), 0));
    }


}
